<template>
  <div>
    <el-button type="primary" @click="showAddDialog">添加图书</el-button>
    <el-table :data="books" style="width: 100%">
      <el-table-column prop="id" label="ID" width="80"></el-table-column>
      <el-table-column prop="title" label="书名"></el-table-column>
      <el-table-column prop="author" label="作者"></el-table-column>
      <el-table-column prop="copies" label="数量"></el-table-column>
      <el-table-column label="操作">
        <template slot-scope="scope">
          <el-button type="danger" size="mini" @click="deleteBook(scope.row)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>
    <el-dialog :title="isEdit ? '编辑图书' : '添加图书'" :visible.sync="dialogVisible">
      <el-form :model="form" label-width="80px">
        <el-form-item label="书名">
          <el-input v-model="form.title"></el-input>
        </el-form-item>
        <el-form-item label="作者">
          <el-input v-model="form.author"></el-input>
        </el-form-item>
        <el-form-item label="数量">
          <el-input-number v-model="form.copies" :min="1"></el-input-number>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false">取消</el-button>
        <el-button type="primary" @click="submitForm">确定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    return {
      books: [
        {"id": 1, "title": "Python编程", "author": "John Doe", "copies": 4},
        {"id": 2, "title": "历史的秘密", "author": "Jane Smith", "copies": 3},
        {"id": 3, "title": "宇宙探索", "author": "Emily Brown", "copies": 2},
        {"id": 4, "title": "健康生活", "author": "Mike Johnson", "copies": 5},
        {"id": 5, "title": "数学之美", "author": "Sarah Lee", "copies": 4},
        {"id": 6, "title": "艺术欣赏", "author": "David White", "copies": 3},
        {"id": 7, "title": "编程入门", "author": "Alice Green", "copies": 2},
        {"id": 8, "title": "科幻世界", "author": "Frank Black", "copies": 5},
        {"id": 9, "title": "自然奇观", "author": "Grace Blue", "copies": 4},
        {"id": 10, "title": "音乐之声", "author": "Tom Red", "copies": 3}
      ],
      dialogVisible: false,
      isEdit: false,
      form: {
        id: null,
        title: '',
        author: '',
        copies: 1
      }
    };
  },
  methods: {
    showAddDialog() {
      this.isEdit = false;
      this.form = {
        id: null,
        title: '',
        author: '',
        copies: 1
      };
      this.dialogVisible = true;
    },
    deleteBook(book) {
      const index = this.books.findIndex(item => item.id === book.id);
      if (index !== -1) {
        this.books.splice(index, 1);
      }
    },
    submitForm() {
      if (this.isEdit) {
        const index = this.books.findIndex(item => item.id === this.form.id);
        if (index !== -1) {
          this.books.splice(index, 1, this.form);
        }
      } else {
        const newId = Math.max(...this.books.map(book => book.id)) + 1;
        this.form.id = newId;
        this.books.push({ ...this.form });
      }
      this.dialogVisible = false;
    }
  }
};
</script>

<style scoped>
/* 可按需添加样式 */
</style>
